I must magnify you must magnify he must magnify we must magnify you must magnify they must magnify
V-ing form
I must be magnifying you must be magnifying he must be magnifying we must be magnifying you must be magnifying they must be magnifying
Perfect
I must have magnified you must have magnified he must have magnified we must have magnified you must have magnified they must have magnified
V-ing perfect
I must have been magnifying you must have been magnifying he must have been magnifying we must have been magnifying you must have been magnifying they must have been magnifying
Negation
Simple form
I mustn't magnify you mustn't magnify he mustn't magnify we mustn't magnify you mustn't magnify they mustn't magnify
V-ing form
I mustn't be magnifying you mustn't be magnifying he mustn't be magnifying we mustn't be magnifying you mustn't be magnifying they mustn't be magnifying
Perfect
I mustn't have magnified you mustn't have magnified he mustn't have magnified we mustn't have magnified you mustn't have magnified they mustn't have magnified
V-ing perfect
I mustn't have been magnifying you mustn't have been magnifying he mustn't have been magnifying we mustn't have been magnifying you mustn't have been magnifying they mustn't have been magnifying
Interrogative form
Simple form
must I magnify? must you magnify? must he magnify? must we magnify? must you magnify? must they magnify?
V-ing form
must I be magnifying? must you be magnifying? must he be magnifying? must we be magnifying? must you be magnifying? must they be magnifying?
Perfect
must I have magnified? must you have magnified? must he have magnified? must we have magnified? must you have magnified? must they have magnified?
V-ing perfect
must I have been magnifying? must you have been magnifying? must he have been magnifying? must we have been magnifying? must you have been magnifying? must they have been magnifying?
Interro-negative form
Simple form
mustn't I magnify? mustn't you magnify? mustn't he magnify? mustn't we magnify? mustn't you magnify? mustn't they magnify?
V-ing form
mustn't I be magnifying? mustn't you be magnifying? mustn't he be magnifying? mustn't we be magnifying? mustn't you be magnifying? mustn't they be magnifying?
Perfect
mustn't I have magnified? mustn't you have magnified? mustn't he have magnified? mustn't we have magnified? mustn't you have magnified? mustn't they have magnified?
V-ing perfect
mustn't I have been magnifying? mustn't you have been magnifying? mustn't he have been magnifying? mustn't we have been magnifying? mustn't you have been magnifying? mustn't they have been magnifying?